发明名称 |
ANORDNING FOR DRAGNING AV LEDNING GENOM BRANDTETANDE GENOMFORING GENOM ETT BYGGNADSELEMENT |
摘要 |
A device for laying conduit (32) through a fire-sealing lead-through body (1) in which there is disposed an elastic fire retardant foamed material (4). The foamed material is kept compressed in the lead-through and after executed laying surrounds the conduit sealingly. The device comprises a sleeve (25) slit up at the ends (28, 29) to form funnel-shaped flarable sleeve and openings, and further comprises a conical driving tip (24) engageable with the sleeve insertion end, said tip relinquishing engagement with the sleeve end on passing through the foamed material. |
申请公布号 |
SE420786(B) |
申请公布日期 |
1981.10.26 |
申请号 |
SE19800002047 |
申请日期 |
1980.03.14 |
申请人 |
* TELEFON AB L M ERICSSON |
发明人 |
B * LEGERIUS;H W * SIEBERT |
分类号 |
F16L5/02;H02G1/00;H02G3/22;(IPC1-7):02G3/22;16L5/02 |
主分类号 |
F16L5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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